Jeep Cherokee 1999 Electronic Service Manual page 1463

21 - 140 TRANSMISSION AND TRANSFER CASE
CLEAN I N G AN D I N SPECT I ON (Cont inue d)
Fig. 176 Front Clutch Piston Retainer Check Ball
Fig. 177 Retainer Bushing Location/Inspection
Repla ce t h e clu t ch discs if wa r ped, wor n , scor ed,
bu r n ed/ch a r r ed, t h e lu gs a r e da m a ged, or if t h e fa c-
in g is fla kin g off.
Repla ce t h e st eel pla t es a n d t h e pr essu r e pla t e if
h ea vily scor ed, wa r ped, or br oken . Be su r e t h e dr iv-
in g lu gs on t h e discs a n d pla t es a r e a lso in good con -
dit ion . Th e lu gs m u st n ot be ben t , cr a cked or
da m a ged in a n y wa y.
Repla ce t h e pist on spr in g a n d wa ve spr in g if eit h er
pa r t is dist or t ed, wa r ped or br oken .
Ch eck t h e lu g gr ooves in t h e clu t ch r et a in er. Th e
st eel pla t es sh ou ld slide fr eely in t h e slot s. Repla ce
t h e r et a in er if t h e gr ooves a r e wor n or da m a ged. Also
ch eck a ct ion of t h e r et a in er ch eck ba ll. Th e ba ll m u st
m ove fr eely a n d n ot st ick.
In spect t h e pist on a n d r et a in er sea l su r fa ces for
n icks or scr a t ch es. Min or scr a t ch es ca n be r em oved
wit h cr ocu s clot h . H owever, r epla ce t h e pist on a n d/or
r et a in er if t h e sea l su r fa ces a r e ser iou sly da m a ged.
Location
Ch eck t h r u st wa sh er con dit ion . Wa sh er t h ickn ess
sh ou ld be 1.55 t o 1.60 m m (0.061 t o 0.063 in .).
Repla ce t h e wa sh er if wor n or da m a ged.
Ch eck con dit ion of t h e t wo sea l r in gs on t h e in pu t
sh a ft a n d t h e sin gle sea l r in g on t h e pist on r et a in er
h u b. Repla ce t h e sea l r in gs on ly if sever ely wor n ,
cr a cked, or ca n n ot be h ooked t oget h er.
PLANETARY GEARTRAIN/OUTPUT SHAFT
Clea n t h e in t er m edia t e sh a ft a n d pla n et a r y com po-
n en t s in solven t a n d dr y t h em wit h com pr essed a ir.
Do n ot spin t h e pla n et a r y pin ion gea r s wit h com -
pr essed a ir.
In spect t h e pla n et a r y gea r set s a n d a n n u lu s gea r s.
Th e pla n et a r y pin ion s, sh a ft s, wa sh er s, a n d r et a in in g
pin s a r e ser vicea ble. H owever, if a pin ion ca r r ier is
da m a ged, t h e en t ir e pla n et a r y gea r set m u st be
r epla ced a s a n a ssem bly.
Repla ce t h e a n n u lu s gea r s if t h e t eet h a r e ch ipped,
br oken , or wor n , or t h e gea r is cr a cked. Repla ce t h e
pla n et a r y t h r u st pla t es a n d t h e t a bbed t h r u st wa sh -
er s if cr a cked, scor ed or wor n .
In spect t h e m a ch in ed su r fa ces of t h e ou t pu t sh a ft .
Be su r e t h e oil pa ssa ges a r e open a n d clea r. Repla ce
t h e sh a ft if scor ed, pit t ed, or da m a ged.
In spect t h e su n gea r a n d dr ivin g sh ell. If eit h er
com pon en t is wor n or da m a ged, r em ove t h e su n gea r
r ea r r et a in in g r in g a n d sepa r a t e t h e su n gea r a n d
t h r u st pla t e fr om t h e dr ivin g sh ell. Th en r epla ce t h e
n ecessa r y com pon en t .
Repla ce t h e su n gea r a s a n a ssem bly if t h e gea r
t eet h a r e ch ipped or wor n . Also r epla ce t h e gea r a s
a n a ssem bly if t h e bu sh in gs a r e scor ed or wor n . Th e
su n gea r bu sh in gs a r e n ot ser vicea ble. Repla ce t h e
t h r u st pla t e if wor n , or sever ely scor ed. Repla ce t h e
dr ivin g sh ell if dist or t ed, cr a cked, or da m a ged in a n y
wa y.
Repla ce a ll sn a p r in gs du r in g gea r t r a in a ssem bly.
Reu sin g sn a p r in gs is n ot r ecom m en ded.
ADJ U ST M EN T S
GEARSHIFT CABLE
Ch eck a dju st m en t by st a r t in g t h e en gin e in P a r k
a n d Neu t r a l. Adju st m en t is OK if t h e en gin e st a r t s
on ly in t h ese posit ion s. Adju st m en t is in cor r ect if t h e
en gin e st a r t s in on e bu t n ot bot h posit ion s. If t h e
en gin e st a r t s in a n y posit ion ot h er t h a n P a r k or Neu -
t r a l, or if t h e en gin e will n ot st a r t a t a ll, t h e pa r k/
n eu t r a l posit ion swit ch m a y be fa u lt y.
Gearshift Adjustment Procedure
(1) Sh ift t r a n sm ission in t o P a r k.
(2) Ra ise veh icle.
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